Dental plate



June 4, E. KAczMAREK 2,003,891

DENTAL PLATE Filed Jan. 9, 1933 Patented June 4, 1935 v l DENTAL PLATEEugen Kaczmarek, Berlin-Hermsdorf, i

Germany Application January 9, 1933, Serial No. 650,903

i In Germany January 9, 1932 4 Claims.

Y The present invention relates to dental plates, mom particularly to avalve embodied in such plates for xing the same in the mouth of thewearer, .and has for one of its main objects to 5 provide a dental platevalve capable of exhausting the air accumulating in the space betweenthe roof of the mouth and the plate when the latter is placed inposition, whereby a suction will be created therebetween to draw theplate and retain the 'mme in proper position.

Another important object of the invention resides in the provision of adental plate valve constructed to resist the action of saliva, therebymaking it possible to materially increase the perlod of usefulness ofsaid devices; the improved device being further constructed in .a mannerthat the parts lmay be readily and easily replaced should for somereason they become deteriorated.

The invention also aims to provide a device of the character mentionedwhich will not depend, alone, upon the differences of pressure existingon either side of the device to operate the same, because thisnecessitates too great a suction between the palate and plate, therebycausing pains and inconvenience to the wearer, but wherein the action ofthe valve is assisted by positive means such as a spring urging therelative associated parts of the device into operative position.

It is likewise among the desired features of the invention to provide avalve for retaining dental plates in position, and which is soconstructed that its proper functioning is assured regardless of theamount of air imprisoned within the space between the plate and palate.

Other important objects and advantages of the invention will be in partobvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readilyunderstood by those persons skilled in the art, I have in theaccompanying drawing and in the detailed description based thereupon setout a possible embodiment of the same.

In the drawing:

Figure 1 is a face elevation of the valve plate;

Figure 2 is a section through said plate showing the parts associatedtherewith;

Figure 3 is a face elevation of the valve base;

Figure 4 is a section through the valve plate itself; and,

Figure 5 is a section taken through the entire device.

Having more particular reference to the drawing wherein like charactersof reference will designate corresponding parts throughout, my improveddevice may be stated to comprise a valve plate c preferably of circularconfiguration, having a plurality of circular openings f formed therein,and provided with a rivet .yor the like fixed centrally thereof with aportion extending laterally vfrom one of its faces and terminating witha locking head h.

Positioned'overvthe valve plate c and covering the openings f thereof,is a rubbercap d having a curled marginal edge snugly engageable withthe adjacentportion of said plate, the cap lying yover that face of thevalve platev from ywhich extends the rivet g, and, for that purpose,being provided with an aperture receiving said rivet.

Arranged over the valve plate c and'its cap d, is a valve base a,likewise `formed with an aperture for accommodating the extended portionof the rivet.. A'plurality ofkid'ney shaped openings m disposed inregistering relation with the openings'f of the valve p-late c are cutinto said base. A series of apertures n are further provided upon themarginal peripheral portion of the valve base g. serving as anchor meanswhen aixing the valve by the ordinary vulcanizing process or otherwiseplo the dental plate of any well known construcion.

A rubber disk e may be and is preferably inserted between the adjacentsurfaces of the valve plate cap d and valve base a to assure the properfunctioning of the valve as will be more fullyv described hereinafter.

They valve plate c with its rubber cap d, the rubber disk e and thevalve base a are secured together by means of a ilat spring b attachedupon the outer surface of said valve base, arranged radially thereof andengageable with the locking head h of the central rivet g. In thismanner, it will be understood that, by action of the spring b, the valveparts associated as hereinbefore described, will be pressed against oneanother and thus securely fit in their relative positions.

In using my improved device, the air enclosed in the space between theroof of the mouth and the surface of the dental plate, escapes throughthe kidney shaped openings m in the valve base a and passes out betweenthe valve base a and the rubber disk e, thus creating a reduced pressurewithin said space. This causes the normal pressure upon the opposite orouter side of the dental plate, to act through the openings f of thevalve plate c upon the rubber cap d thereof and force the rubber disk einto the kidney shaped openings m of the valve base a, therefore,hermetically closing the same and maintaining the reduced pressurecreated in the chamber or face between the palate and dental plate, thusfixing the latter in proper position within the mouth of the wearer.

The flat spring b, it will be understood, being locked to the head h ofthe securing rivet g, also acts to increase and assure the pressing ofthe rubbergcap d and disk e against the opening in said valvey base a.

Because the openings in the valve base a are given a kidney shapedconfiguration, it will be appreciated that registering relation with thecircular openings f of the valve plate c is made positive even if saidvalve base and valve plate are accidentally or otherwise displacedrelatively to one another.

Manifestly, the construction shown and/de-l scribed is capable ofconsiderable modications and those modifications which come within thescope of the claims, I consider within'the spirit of the invention. f

What I claim isz- 1. A suction valve for dentures .comprising a valvebase having openings therein, a valve plate arranged below said valvebase and having openings therein adapted to register with the openingsin said base, spring means arranged to urge said plate againstsaid baseand a resilient body interposed between said plate and base and adaptedto be first gripped between the same and subsequently the registeringportions of said body being extruded into the openings in said base bythe pressure below said plate.

2. A suction valve for dentures comprising a valve base having openingstherein, a valve plate arranged below said valve base and havingopenings therein adapted to register with the openings in said base,spring means arranged to urge said plate against said base and aresilient body interposed between said plate and base and having acurled marginal edge arranged to engage the periphery of said plate, andadapted to be iirst gripped between the same and subsequently theregistering portions of said body being extruded into the openings insaid base by the pressure below said plate. ,4

' 3.v A suction valve for -dg'entl'ires-i comprising a base plate havingelongated openingst1'e'rein, a valve plate, a resilient cap member and aresilient disk member both interposed between said vbase and valveplates, spring means arranged to urge said valve plate against saidresilient members and said base plate, said valve plate having ventopenings arranged to register with the openings in said base plate topermit external pressure to extrude said resilient members into theopenings in said base plate.

4. A valve for xing a dental plate in position within the mouth of the`wearer, j comprising a valve plate having openings formed'therein,Y a,valve base arranged over said valve plate and provided with openingspositioned in registering relation with the openings in saidvalvefplate, means connected to said valve plate to maintain the same inposition over the valve base, spring means associated with said valveplate and arf ranged to resiliently urge said valve plate against saidvalve base and a resilient body interposed between said valve plateA andsaidy valvefbase whereby external pressure against said valve plate willact through the openings therein vdi: rectly against said resilient bodyto .compress portions lof the same into the ,openings in said 3g

